package com.ktjiaoyu.server.security;

import com.alibaba.fastjson.annotation.JSONField;
import com.ktjiaoyu.server.domain.pojo.Admin;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;

/**
 * 对接 spring security
 */
public class LoginUser implements UserDetails {

    private Admin admin;

    //存储权限信息
    private List<String> permissions;

    //存储SpringSecurity所需要的权限信息的集合
    @JSONField(serialize = false)
    private List<GrantedAuthority> authorities;

    public LoginUser() {
    }

    public LoginUser(Admin admin,List<String> permissions) {
        this.admin = admin;
        this.permissions = permissions;
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {

        if(authorities!=null){
            return authorities;
        }

        //把permissions中字符串类型的权限信息转换成GrantedAuthority对象存入authorities中
        authorities = permissions.stream().
                map(SimpleGrantedAuthority::new)
                .collect(Collectors.toList());

        // for (String permission : permissions) {
        //     SimpleGrantedAuthority authority = new SimpleGrantedAuthority(permission);
        //     authorities.add(authority);
        // }

        return authorities;
    }

    public List<String> getPermissions() {
        return permissions;
    }

    public void setPermissions(List<String> permissions) {
        this.permissions = permissions;
    }


    public Admin getAdmin() {
        return admin;
    }

    public void setAdmin(Admin admin) {
        this.admin = admin;
    }

    @Override
    public String getPassword() {
        return this.admin.getPassword();
    }

    @Override
    public String getUsername() {
        return this.admin.getUsername();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}